The book that you pick up has been developed for students of first year courses in International Relations, Finance and Management. It has been designed to help you - even those who learned mathematics in high school only at the elementary level - to pass the exams in mathematics (or any other similar courses). The book is prepared in a way that allows you to learn by yourself. Hence, great emphasis was placed on the examples that dominate in this book. They are resolved "step by step" to make it easy to understand them. Chapter 1. Logic 1.1. Sentences 1. ...